1081222604 has 36 divisors (see below), whose sum is σ = 2376910032. Its totient is φ = 421254240.

The previous prime is 1081222601. The next prime is 1081222609. The reversal of 1081222604 is 4062221801.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1081222601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156179 + ... + 162954.

Almost surely, 2^1081222604 is an apocalyptic number.

1081222604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1081222604 is an abundant number, since it is smaller than the sum of its proper divisors (1295687428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081222604 is a wasteful number, since it uses less digits than its factorization.

1081222604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319166 (or 319153 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1081222604 is about 32881.9495164140. The cubic root of 1081222604 is about 1026.3725744945.

The spelling of 1081222604 in words is "one billion, eighty-one million, two hundred twenty-two thousand, six hundred four".